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Turkoglu Erhan E Department of Neurological Surgery, University of Wisconsin, School of Medicine and Public Health, Madison, Wisconsin, United - - 2014
Background and Study Aim To enhance the visualization of the intracranial vasculature of cadavers under gross examination with a combination of imaging modalities. Material and Methods A total of 20 cadaver heads were used to test two different perfusion techniques. First, fixed cadaver heads were perfused with water; second, fresh ...
Barreau X X Department of diagnostic and therapeutic neuroradiology, CHU Pellegrin, place Amélie-Raba-Léon, 33076 Bordeaux cedex, France. Electronic address: - - 2014
Intracranial arteriovenous malformations (AVM) are rare lesions that are often discovered fortuitously. They should be identified on CT scan and MRI before resorting to angiography; the latter is used to prepare the treatment. This article describes the various types of subpial or dural AVM and the specific characteristics that enable ...
Dou Weiqiang W Faculty for Natural Sciences, Biomedical Magnetic Resonance, Otto-von-Guericke University, ZENIT Building, Leipziger Str. 44, 39120, Magdeburg, - - 2014
The purpose of this study was to test, for the first time, whether spectroscopy voxels could be positioned automatically with high accuracy and reproducibility in ultrahigh-field longitudinal magnetic resonance spectroscopy (MRS) studies. MRS voxels were automatically positioned in two cingulate subregions of 12 healthy subjects using a vendor-provided automatic voxel ...
Wang Qing Q Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, - - 2015
A hydrophilic stationary phase (SP) was prepared through grafting N-methylene phosphonic acid chitosan on magnesia-zirconia particles (P-CTS-MgO-ZrO2) via Lewis acid-base interaction. The resulting material was characterized by thermogravimetric analysis, Fourier transform infrared spectroscopy, scanning electron microscope and nitrogen adsorption analysis. The chromatographic performance of P-CTS-MgO-ZrO2 was systemically evaluated by studying ...
- - 2014
My favorite author (fiction) is V. S. Naipaul (A House for Mr. Biswas). I would have liked to have discovered the zipper-brilliant, flexible, versatile, and essential. Simple, yet intricate.
Camp Christopher L CL Department of Orthopedic Surgery and the Sports Medicine Center, Mayo Clinic and Mayo Foundation, Mayo Clinic 200 First St., SW, Rochester, MN, 55905, - - 2014
Tibial tubercle-trochlear groove (TT-TG) distance is a variable that helps guide surgical decision-making in patients with patellar instability. The purpose of this study was to compare the accuracy and reliability of an MRI TT-TG measuring technique using a simple external alignment method to a previously validated gold standard technique that ...
van der Paardt M P MP Department of Radiology, Academic Medical Center Amsterdam, Amsterdam, The Netherlands. Electronic address: - - 2014
To evaluate patient burden and preferences for MR colonography with a limited bowel preparation and automated carbon dioxide insufflation in comparison to conventional colonoscopy. Symptomatic patients were consecutively recruited to undergo MR colonography with automated carbon dioxide insufflation and a limited bowel preparation followed within four weeks by colonoscopy with ...
Hyodoh Hideki H Department of Legal Medicine, Sapporo Medical University, School of Medicine, Japan. Electronic address: - - 2014
We have developed a technique of CT-guided needle placement in the destructed human body in forensic practice. A sixty-year-old male was found in a burned car and he was also destructed severely. Although blood was needed for the external examination, it was difficult to approach the vessels because of the ...
Okuda Katsuhiro K Department of Oncology, Immunology and Surgery, Nagoya City University Graduate School of Medical Science, 1 Kawasumi, Mizuho-cho, Mizuho-Ku, Nagoya, 467-8601, - - 2014
The number of cases of wedge resection of small-sized pulmonary nodules performed under video-assisted thoracoscopic surgery (VATS) is increasing. Computed tomography (CT)-guided marking with hook wires has been used to locate the nodules that are not identifiable under VATS. However, this method is invasive and is associated with a risk ...
Katano Hiroyuki H Department of Neurosurgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan; Department of Medical Informatics & Integrative Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. Electronic address: - - 2014
The aim of the study was to investigate the depiction of the carotid artery by fluorescein sodium (FS) videoangiography compared with indocyanine green (ICG) videoangiography, focusing on how the vasa vasorum of the carotid artery is depicted. Thirty-five patients (19 FS patients, 16 ICG patients, mean age 69.4 ± 5.1 years, mean degree ...
Vordenbäumen Stefan - - 2014
IntroductionSynovial inflammation and joint destruction in rheumatoid arthritis (RA) may progress despite clinical remission. Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is increasingly used to detect synovial inflammation in RA. Although small joints such as metacarpophalangeal (MCP) joints are mainly affected by RA, MRI findings have never been directly compared to ...
Lee Young-Sub YS Department of Neurosurgery, Kyungpook National University School of Medicine, Daegu, - - 2014
Immunoglobulin G4 (IgG4)-related hypertrophic pachymeningitis, defined as focally or diffusely thickened dura mater and lymphoplasmacytic infiltration with increased IgG4 bearing plasma cells, is a rare disease. Moreover, cases involving bone are even rarer. In this report, the authors describe a case of IgG4-related hypertrophic pachymeningitis involving the skull in a ...
Kneissl Sibylle S Department for Companion Animals and Horses, University of Veterinary Medicine, Vienna, 1210 Vienna, - - 2014
An increasing proportion of canine patients are presented with chronic thoracolumbar back pain and without compressive spinal lesions. In humans, spinal perineural infiltrations have been reported to have a favorable effect on pain control. The purpose of this prospective cadaver study was to describe the dispersal pattern of injectate following ...
Ansón Agustina A Department of Animal Medicine and Surgery, University of Murcia, Murcia, Spain Veterinary Teaching Hospital, University of Murcia, Murcia, - - 2014
Axillary blockade of the brachial plexus (BP) is advocated in humans and dogs for surgical procedures carried out on the foot, carpus and elbow as it provides complete analgesia distally from above the elbow joint. The aim of this study was to develop an ultrasound (US)-guided approach to block the ...
Mathews Benji K BK From *Regions Hospital, St Paul; †HealthPartners Medical Group & Clinics, Bloomington; ‡Department of Medicine, University of Minnesota Medical School, St Paul; §Minneapolis VA Medical Center, Minneapolis; and â•‘Lab Medicine and Pathology and ¶Department of Internal Medicine, University of Minnesota Medical School, St Paul, - - 2014
We describe a case of an 87-year-old woman with rheumatoid arthritis on etanercept who developed subacute encephalopathy. Magnetic resonance imaging and blood cultures led to the diagnosis of Listeria monocytogenes rhomboencephalitis, which proved to be fatal. Postmortem examination of the brain revealed abscesses with extensive necrosis. Gram stain showed small ...
Sohn Chul-Ho CH Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of - - 2014
The purpose of this study is to evaluate the efficacy of glucose transporter protein 1 (GLUT1) antibody-conjugated iron oxide nanoparticles (Fe3O4 NPs) as magnetic resonance imaging (MRI) molecular imaging agents for differentiating infantile hemangioma from vascular malformation in the hemangioma animal model. The conjugation of Fe3O4 NPs with anti-GLUT1 antibodies ...
Zhao Mengyu M Department of Pharmacy, Hebei University of Science and Technology, Yuhua East Road 70, Shijiazhuang 050018, PR - - 2014
This study aims to prepare amphotericin B magnetic liposomes (AmB-MLPs), which may improve drug concentration in brain, enhance magnetic targeting for brain and reduce drug toxicity in the presence of magnetic field. AmB-MLPs were prepared by means of film dispersion-ultrasonication, and their physical properties were characterized. In vivo, the magnetic ...
Bülow Robin R Department of Radiology and Neuroradiology, University Medicine, Ernst Moritz Arndt University Greifswald, Ferdinand-Sauerbruch-Straße 1, Greifswald, 17475, Germany, - - 2014
To investigate the frequency of pancreatic duct (PD) variants and their effect on pancreatic exocrine function in a population-based study using non-invasive secretin-stimulated magnetic resonance cholangiopancreatography (sMRCP). Nine hundred and ninety-five volunteers, 457 women and 538 men, aged 51.9 ± 13.4 years, underwent navigator-triggered, T2-weighted, 3D turbo spin echo MRCP on a 1.5 T ...
Kim Ji Eun JE Department of Radiology, Gyeongsang National University School of Medicine, Jinju, - - 2014
The purpose of the study is to describe the CT findings of poorly differentiated (PD) colorectal adenocarcinoma (CRAC) compared with those of well- (WD) or moderately differentiated (MD) CRAC. One hundred and thirteen patients with pathologically proven PD (n = 26), WD (n = 35), or MD (n = 52) CRACs and who had undergone preoperative, ...
Prodoehl Janey J Physical Therapy Program, Midwestern University, 555 31st Street, Downers Grove, IL, - - 2014
Neuroimaging advances over the past several decades have provided increased understanding of the structural and functional brain changes that occur with Parkinson's disease (PD). Examination of resting state functional magnetic resonance imaging (rs-fMRI) provides a noninvasive method that focuses on low-frequency spontaneous fluctuations in the blood-oxygenation-level-dependent signal that occurs when ...
Suto Hirofumi H Corporate Research and Development Center, Toshiba Corporation, Komukai-Toshiba-cho, Saiwai-ku, Kawasaki 212-8582, - - 2014
Technology for detecting the magnetization direction of nanoscale magnetic material is crucial for realizing high-density magnetic recording devices. Conventionally, a magnetoresistive device is used that changes its resistivity in accordance with the direction of the stray field from an objective magnet. However, when several magnets are near such a device, ...
Xiao Yiming Y McConnell Brain Imaging Center, Montreal Neurological Institute and Hospital, 3801 University Street, Montreal, QC, H3A 2B4, Canada, - - 2014
Parkinson's disease (PD) is the second leading neurodegenerative disease after Alzheimer's disease. In PD research and its surgical treatment, such as deep brain stimulation (DBS), anatomical structural identification and references for spatial normalization are essential, and human brain atlases/templates are proven highly instrumental. However, two shortcomings affect current templates used ...
Fernandez Laura - - 2014
Controlling anisotropy and exchange coupling in patterned magnetic nanostructures is the key for developing advanced magnetic storage and spintronic devices. We report on the antiferromagnetic interaction between a Co nanodot array and its supporting GdAu2 nanotemplate that induces large anisotropy values in individual Co nanodots. In clear contrast with non-magnetic ...
Capín Esmeralda E Unidad de Imagen, Área del Corazón, Hospital Universitario Central de Asturias, Oviedo, Asturias, - - 2014
Caseous calcification of the mitral annulus is an infrequent echocardiographic finding. The differential diagnosis includes other entities like tumors, abscess or thrombus. Both cardiac CT and cardiac MRI may be useful for its definitive diagnosis.
Shearer Tom T School of Mathematics, University of - - 2014
The effect of phosphotungstic acid (PTA) and iodine solution (IKI) staining was investigated as a method of enhancing contrast in the X-ray computed tomography of porcine anterior cruciate ligaments (ACL) and patellar tendons (PT). We show that PTA enhanced surface contrast, but was ineffective at penetrating samples, whereas IKI penetrated ...
Feng Jie-Ying JY Department of Radiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, PR - - 2014
The putaminal abnormalities detected on 1.5 T magnetic resonance imaging (MRI), such as putaminal atrophy, slit-like hyperintense rim, and hypointensity in the putamen on T2-weighted (T2W) imaging are important signs on differentiating multiple system atrophy with parkinsonism (MSA-P) from Parkinson's disease (PD). However, the putaminal abnormalities may have different manifestations on ...
Sako Wataru W Center for Neurosciences, The Feinstein Institute for Medical Research, Manhasset, NY, - - 2014
Background: Parkinson's disease (PD) involves the degeneration of dopaminergic neurons in substantia nigra compacta. However, it is still a contentious issue whether magnetic resonance imaging (MRI) can detect the nigral volume loss in PD patients. Objective: We synthesized the results of published research on SN volumetry using a meta-analysis method ...
Kamagata Koji K Department of Radiology, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan, - - 2014
Diffusional kurtosis imaging (DKI) is a more sensitive technique than conventional diffusion tensor imaging (DTI) for assessing tissue microstructure. In particular, it quantifies the microstructural integrity of white matter, even in the presence of crossing fibers. The aim of this preliminary study was to compare how DKI and DTI show ...
Hsiao Ing-Tsung IT Healthy Aging Research Center, and Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Molecular Imaging Center and Department of Nuclear Medicine, Chang Gung Memorial Hospital, Taoyuan, - - 2014
(99m)Tc-TRODAT-1 is the first clinical routine (99m)Tc radiopharmaceutical to evaluate dopamine neurons loss in Parkinson's disease (PD). (18)F-AV-133 is a novel PET radiotracer targeting the vesicular monoamine transporter type 2 (VMAT2) to detect monoaminergic terminal reduction in PD patients. The aim of this study is to compare both images in ...
Choo Hye Jung HJ 1 Department of Radiology, College of Medicine, Inje University Busan Paik Hospital, Gaegeum-dong Jin-gu, Busan 614-735, Republic of - - 2014
OBJECTIVE. The purpose of this study is to evaluate the frequency and MRI characteristics of multibanded anterior talofibular ligaments in normal ankles and to characterize the tear types of multibanded anterior talofibular ligaments in sprained ankles using a 3D isotropic proton density (PD)-weighted fast spin-echo (FSE) MRI sequence. SUBJECTS AND ...
Schwarz Stefan T ST Radiological Sciences, Division of Clinical Neurosciences, School of Medicine, University of Nottingham, Nottingham, United - - 2014
There is no well-established in vivo marker of nigral degeneration in Parkinson's disease (PD). An ideal imaging marker would directly mirror the loss of substantia nigra dopaminergic neurones, which is most prominent in sub-regions called nigrosomes. High-resolution, iron-sensitive, magnetic resonance imaging (MRI) at 7T allows direct nigrosome-1 visualisation in healthy ...
Kim Borah B Department of Psychiatry, CHA Bundang Medical Center, CHA University, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of - - 2014
The frontal cortex might play an important role in the fear network, and white matter (WM) integrity could be related to the pathophysiology of panic disorder (PD). A few studies have investigated alterations of WM integrity in PD. The aim of this study was to determine frontal WM integrity differences ...
Meijer Frederick Ja FJ Department of Radiology, Nuclear medicine, Radboud University Nijmegen Medical Center, Geert Grooteplein 10, 6500 HB, Nijmegen, The - - 2014
In this review article, conventional brain MRI and advanced MRI techniques in Parkinson`s disease (PD) are discussed, with emphasis on clinical relevance. Conventional brain MRI sequences generally demonstrate limited abnormalities specific for PD and in clinical practice brain MRI is mainly used to exclude other pathology. Possibly, brain MRI at ...
Grieve Stuart M SM North Shore Heart Research Group, Kolling Institute, University of Sydney, Australia (S.M.G., J.M., C.Y.K., S.T., R.B., G.A.F.) Sydney Translational Imaging Laboratory, Sydney Medical School, University of Sydney, Australia (S.M.G.) Department of Radiology, Royal Prince Alfred Hospital, Sydney, Australia (S.M.G., - - 2014
Quantification of myocardial "area at risk" (AAR) and myocardial infarction (MI) zone is critical for assessing novel therapies targeting myocardial ischemia-reperfusion (IR) injury. Current "gold-standard" methods perfuse the heart with Evan's Blue and stain with triphenyl tetrazolium chloride (TTC), requiring manual slicing and analysis. We aimed to develop and validate ...
Yao Bing B Advanced Magnetic Resonance Imaging Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, United States of America; Center for Neuroimaging Research, Kessler Foundation, West Orange, New Jersey, United States of - - 2014
Neocortical lesions (NLs) are an important pathological component of multiple sclerosis (MS), but their visualization by magnetic resonance imaging (MRI) remains challenging. We aimed at assessing the sensitivity of multi echo gradient echo (ME-GRE) T2*-weighted MRI at 7.0 Tesla in depicting NLs compared to myelin and iron staining. Samples from ...
Wang Wei W Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, People's Republic of - - 2014
In this paper, magnetic and fluorescent bifunctional YbPO4:Er,Dy microspheres were synthesized via a simple solvothermal method. The prepared microspheres exposed to 980 nm near-infrared (NIR) laser light emitted bright upconversion fluorescence (450-570 nm) after calcination at high temperatures (>800°C). Results of magnetic resonance studies demonstrated that the YbPO4:Er,Dy microspheres are ...
Salvatore C C Department of Physics, University of Milan - Bicocca, Piazza della Scienza 3, 20126 Milan, Italy. Electronic address: - - 2014
Supervised machine learning has been proposed as a revolutionary approach for identifying sensitive medical image biomarkers (or combination of them) allowing for automatic diagnosis of individual subjects. The aim of this work was to assess the feasibility of a supervised machine learning algorithm for the assisted diagnosis of patients with ...
El Habnouni Sarah - - 2013
Hydrophobic macromolecular contrast agents (MMCAs) are highly desirable to provide safe and efficient magnetic resonance (MR) visibility to implantable medical devices. In this study, we report on the synthesis and evaluation of novel biodegradable poly(ε-caprolactone)-based MMCAs. Poly(α-propargyl-ε-caprolactone-co-ε-caprolactone)s containing 2, 5 and 10 mol% of propargyl groups have been prepared by ...
Benadiba Marcel - - 2013
The pathophysiology of Parkinson's disease (PD) has not yet been completely elucidated. However, during the past few years, significant progress has been made in understanding the intra- and extracellular mechanisms by which proteins such as alpha-synuclein and neuroinflammatory molecules may display impaired function and/or expression in PD. Recent developments in ...
Wang Deng-Bin DB Department of Radiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China. - - 2013
To determine the magnetic resonance cholangiopancreatography (MRCP) and magnetic resonance imaging (MRI) features of pancreatitis with pancreas divisum (PD) and the differences vs pancreatitis without divisum. Institutional review board approval was obtained and the informed consent requirement was waived for this HIPAA-compliant study. During one year period, 1439 consecutive patients ...
Koo Chiwan - - 2013
Magnetic resonance (MR) microscopy typically employs microcoils for enhanced local signal-to-noise ratio (SNR). Planar (surface) microcoils, in particular, offer the potential to be configured into array elements as well as to enable the imaging of extremely small samples because of the uniformity and precision provided by microfabrication techniques. Microcoils, in ...
Lavdas Eleftherios - - 2013
The purpose of this study, is to compare the sequences: 1) proton density (PD) BLADE (BLADE is a PROPELLER-equivalent implementation of the Siemens Medical System) with fat saturation (FS) coronal (COR), 2) PD FS COR, 3) multi-planar reconstruction (MPR) with 3mm slice thickness and 4) multi-planar reconstruction (MPR) with 1.5mm ...
Blazejewska Anna I AI Sir Peter Mansfield Magnetic Resonance Centre, University of Nottingham, Nottingham, - - 2013
This study assessed whether high-resolution 7 T MRI allowed direct in vivo visualization of nigrosomes, substructures of the substantia nigra pars compacta (SNpc) undergoing the greatest and earliest dopaminergic cell loss in Parkinson disease (PD), and whether any disease-specific changes could be detected in patients with PD. Postmortem (PM) midbrains, ...
Sterling Nicholas W NW Department of Neurology, Pennsylvania State University-Milton S Hershey Medical Center, Hershey, PA 17033-0850, - - 2013
Parkinson's disease (PD) is marked pathologically by nigrostriatal dopaminergic terminal loss. Histopathological and in vivo labeling studies demonstrate that this loss occurs most extensively in the caudal putamen and caudate head. Previous structural studies have suggested reduced striatal volume and atrophy of the caudate head in PD subjects. The spatial ...
Christopher Leigh - - 2013
Cognitive impairment occurs frequently in Parkinson's disease (PD) and the concept of Mild Cognitive Impairment in PD (PD-MCI) has recently emerged. Patients with mild impairment are at risk of developing dementia, and thus it is a topic of growing interest. Many previous studies have investigated the neural correlates of cognitive ...
Baglieri A - - 2013
Magnetic resonance imaging (MRI) provides an in vivo assessment of cortical and subcortical regions affected in Parkinson's disease (PD). This review summarizes the most important conventional and non-conventional MRI techniques applied in this field. Standard neuroimaging techniques have played a marginal role in the diagnosis and follow-up of PD, essentially ...
Catana Ciprian C Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA. - - 2013
PET and MR imaging are modalities routinely used for clinical and research applications. Integrated scanners capable of acquiring PET and MR imaging data in the same session, sequentially or simultaneously, have recently become available for human use. In this article, we describe some of the technical advances that allowed the ...
Martinez Gary V GV Department of Cancer Imaging and Metabolism, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, - - 2013
A scaffold bearing eight terminal alkyne groups was synthesized from sucrose, and copies of an azide-terminated Gd-DOTA complex were attached via copper(I)-catalyzed azide-alkyne cycloaddition. The resulting contrast agent (CA) was administered by gavage to C3H mice. Passage of the CA through the gastrointestinal (GI) tract was followed by T1-weighted magnetic ...
Orimo Satoshi - - 2013
Brain MRI is essential for differentiating Parkinson's disease (PD) from other parkinsonian syndromes. The purpose of performing brain MRI is not to make a diagnosis of PD but is to exclude other parkinsonian syndromes. Recently, several new MRI techniques such as voxel based morphometry, relaxometry, magnetization transfer, spectroscopy, tractography, and ...
Garraux Gaëtan G Cyclotron Research Centre, Sart Tilman B30, University of Liège, 4000 Liège, Belgium ; Department of Neurology, University Hospital Centre, Sart Tilman B35, 4000 Liège, - - 2013
Most available pattern recognition methods in neuroimaging address binary classification problems. Here, we used relevance vector machine (RVM) in combination with booststrap resampling ('bagging') for non-hierarchical multiclass classification. The method was tested on 120 cerebral (18)fluorodeoxyglucose (FDG) positron emission tomography (PET) scans performed in patients who exhibited parkinsonian clinical features ...
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